Active 1Kbit I²C EEPROM for multi-voltage designs
The Microchip AT24C01C-MAHM-T is a 1Kbit serial EEPROM organized as 128 x 8 bits, accessed through an I²C interface at up to 1 MHz. The 550 ns access time keeps read latency predictable in mixed-speed bus topologies. Typical applications include parameter storage, calibration data, and configuration registers in industrial sensors, telecom line cards, and battery-powered IoT nodes where the wide voltage range simplifies power rail design.
Industrial temperature range and compact footprint
The 8-UDFN package with exposed pad (2x3 mm) saves board area in dense layouts; the pad should be connected to a quiet ground plane for thermal relief. Surface-mount assembly follows standard reflow profiles for MSL 1 parts.
Write cycle timing and endurance planning
Write cycle time is 5 ms per word or page. For a 1Kbit device, budget the write time when updating calibration tables or configuration blocks in firmware loops. The I²C interface supports byte and page writes; the 128-byte page size matches small data structures. Endurance is typical for this class — plan for 1 million write cycles with data retention of 100 years at 25°C, derated at higher temperatures per the datasheet.
Active lifecycle, RoHS3 compliant
It is RoHS3 compliant, suitable for EU and global markets.